Heating and ventilating system



April 7, 1925.

' R. R. MORRILL HEATING AND VENTILATING SYSTEM Filed Aug. 21, .1922

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RICHARD REED MORBILL, PALO ALTO, CALIFORNIA.

HEATING AND VENTILATING SYSTEM.

Application filed August 21, 1922. Serial No. 583,264.

To all 107mm et may cow/cm Be it known that RICHARD REEDv MonnrLL, a citizen of the United States, residing at Palo Alto, county of Santa Clara, and State of California, have invente-d a certain new and useful Improvement in Heating and Ventilating Systems, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to malte and use the same, reference being had to the accompanying drawings, forming part of this application. j

This invention relates to heating andventilating systems for buildings, and the objects of the invention are to provide a simple and eii'icient heating system which is inexpensive to install and can be economically operated. y v l Further objects ofv the invention are to provide means whereby the air may be returned from the rooms of the building to the furnace to be heated and -recirculated, and to provide a discharge conduit for each return pipe by means of which foul air may be conducted away from the system and discharged to the atmosphere, thus preventing the recirculationof the foul air through said heating system.

Still further objects of the invention are to provide means for controlling independently of each other the fresh airV supply pipe, the return pipes and the foul airdischarge pipes. Y

lilith these and other objects in view, my invention consists in certain novel features of constrnctirm and arrangements of parts hereinafter i more fully 'described and claimed, and illustrated in the accompany-` ing drawings, in which- The lfigure representsvav vertical cross section through the furnace and its connections and illustrating diagrammatically .the operation of the syste c Referring by numerals to the accompanying drawing, 10 represents Va furnace with a lirepot 11, a combustion chamber 12, an ash pan 13 and a grate 14.

Leading from the combustion chamber is a 'flue pipe 15 by means of which the product-s of combustion are discharged from the combustion chamber. Enclosing the furnace 10 is an outer casing or shell 17 which is spaced from the furnace to form an air chamber 18.

Communicating with this chamber is a fresh air supply pipe 19 the outer end of which opensto the atmosphere, while its inner end is connected to the lower end of casing 17. The admission of fresh air from this pipe to chamber 18 is controlled by a closure plate 2O which is pivotally supported on'the wall of said pipe and is adjustable to regulate the supply of cold air to chamber 18. The fresh air entering chamber 1S is heated by the furnace 10, rises tothe upper end thereof, then passes into the hot air pipes 21 which are connected at their lower ends to thecrown of the casing 17,

and have their upper ends opening into the rooms` to be heated, preferably through floors 22 ofsaid rooms.i Suitable registers 28 are provided in the ioors to which sait ends of pipes 21 may be connected.

Warm air issues from pipes 21, passes through registers 23, and circulates through the room, and is then forced or sucked away through registers 24 arranged in the Hoor of each room by means of return pipes 25, the upper ends of which are connected to said registers and the lower ends of which communicate vwith chamber 18 at points suitably located relative to the inlet opening of pipe 19 and the outlet openings of pipes 21.

Each pipe 25 is provided in its lower end, immediately above its conjunction with casing 17, with a closure plate 26, which is adjustable so as to regulate the incoming of the return air to the air chamber 18, which `closure plate 26 may be closed so as to completely shut off communication between return pipe 25 and chamber 1S.

Leading from eachl return pipe 25 at a point immediately above closure plate 2G is a foul air discharge pipe 2T the outer end of which opens to the atmosphere. A damper plate 28 is adjustably arranged in each pipe 27 and controls the passage of air through said pipe. Foul air discharge pipes 27 are of smaller cross-section than pipes 25, and their points of connectio-n with such pipes are preferably located in the lowermost portions of pipes 25.

In the operation of the heating system, fresh air is admitted to chamber 18 by the supply pipe 19. rlhe air upon being heated by furnace 10 ascends into the upper end of casing 17 and is conducted therefrom by pipes 21 to the various rooms. The warm air circulates through the rooms and is then drawn or forced through pipes 25 which rellc 'turn pipesfandsaid lfoul air dischi turn the a-ir to chamber '18 -to be xheated again and recirculated through the rooms. The foul air is conducted away from pipes 25 by means of pipes 27 which discharge it to the atmosphere.

The inlet of Yit'resh air to fpipe 19 is 're-gulated by closure or damper plate 20, While closure plates 26 and 28c'an be adj'ustedso as to obtain the best results in recirculation of 'thefretuiii air Vtrom the building 'and the sepa-ration of the foul 'air troni 'the vheating' system. y

A heat-ing land `vei`itilating "system of in'y improved construction is eiicient iin opera'- tio'n and inexpensive :to jinstall and lopeinte, provides a supply of Fresh air Awhich can be readily heafted fto the A'desired ten'iperature, and properly circulated 'through the build- 1il7hat ILc-l'aim "is:

1. ln 'a heating system, the combination of "furnace having =combustion chamber and a i'li'fit airchan'ib'ci',fa fresh air conduit coini'nunicating 'with said "hot air chamber at a point 'below said coiiibiistion chamber, hot yair pipes leading 'from the 'upper v"end oil5 said hot air `chamber, hot ai`r return i'ii'p'es coiuniunicatin `vwith saidjliot aii vchamber at pointsaboye'the source of heat ,in said combustion chamber, Atoul 'air 'discharge pipes connected to said Vreturn pipes aii'd opening` to the atmosphere, and dainpers in said'iee pipes pa's'sage or' 'air theretor regulating' the i'zhrough.

2. iln La heatii'ig "system, fthe jconibination ot furnace having :a combustion chamber and a hot airchainber, a iiresh air conduit coininunicatinit,Y with said hot Vair 'chamber beloivl lsaid 'combustion chamber, ihot tair pipes Ileading` troni 'the upper 'end ol said hot air chamber, hot air return pipes communicatiup` "with *said hot air chamber at points aboieth'e so'u'rceof heat in said coinluistion cha'ii'iberl and above vthe inlet cornicetiou. ol said fresh air conduit, 'foul air discharge pip'es 'conneted'to said return pipes and opening :to the iti'iiosplere, and dampers in said return f'pipes and Vsaid l'ioul air discharge pipes for 'regulating Vthe lpz'iss'age off air `tlierethrough- B. Tiiah'cating' and 4yen"tilatii'rg systein,th`e coinbinationfof'a furnace, afliot air chamber surrounding said vfurnace, hotI air pipes leadmeans ein said 2foul "air discharge ipipes for controlling the communication therethrough.

L Iii-"a 'lieatingand yentilating systein,tlie con'ibination o'l: a furiiacc, a hot air chamber surrounding'said diuiiiace, a fresh air supL ply -pipe 'connected to vsaid Achamber at 'ai point 'below the source ior' lieat'o'f said furnace, hot air pipes *leading from ythe upper end ol said `rlchamler 'for conveying ihot air to ythe rooms of building, downwardly inclined return pipes leading from the lo portions of Said rooi'ns to the iloi'v por on of :said dh'ambe'r :for the return air Ytroni said lrooms -to said hot airfch'ainber'at 'a point aboyet'lie fsoufrcc of heat, iinean's in said returnplp'es Lfor controlling,v the passage V"therethrough, branch pipes connected to 'the low portions of said re'tu'rn pipes 'adjacent :to said controlling means for dischargiiig =the Y {,A., .n xr, ing` vtroni the 'low portion of said building to the 4'low portion 'of said chamber 'for "returning the air thereto, a lioul ai'r'discha pipe connected to the low =1`iortion 'oit 1each return Apipca'nd opening Eto itlie ati'nosplrere, an adjustable closure iineinber Vin y"each ois charge pipe Efor cojlitrolling the passage therethrough, Iand liid-justable closure means arranged in each 1 n lpipe betu'eei'i said chamber and said discharge pipe. Y ln testimony uihere'ofl: il hereunto alii'x mjy signature this oth davy or July, 1922.

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